Electric height-adjustable desk

Abstract

Example height adjustable desks are disclosed herein. An example height adjustable desk includes telescoping legs, each telescoping leg including an upper section, a lower section, and an actuator, each telescoping leg having a first end and a second end; a drive system having a motor and a worm gear assembly having a worm and a worm wheel; gearboxes, each gearbox coupled to a respective telescoping leg; transmission shafts connected to the drive system and to the gearboxes wherein the drive system is configured to drive the transmission shafts to drive the telescoping legs together to raise and lower; and a desktop having work surfaces including a first work surface, a second work surface, and a third work surface, the first ends of the telescoping legs to interface with and support the desktop, wherein the desktop is formed by coupling two or more of the work surfaces.

What is claimed is: 
     
         1 . A height adjustable desk comprising:
 telescoping legs, each telescoping leg including an upper section, a lower section, and an actuator, each telescoping leg having a first end and a second end;   a drive system having a motor and a worm gear assembly having a worm and a worm wheel;   gearboxes, each gearbox coupled to a respective telescoping leg;   transmission shafts connected to the drive system and to the gearboxes, wherein the drive system is configured to drive the transmission shafts to drive the telescoping legs together to raise and lower; and   a desktop having work surfaces including a first work surface, a second work surface, and a third work surface, the first ends of the telescoping legs to interface with and support the desktop, wherein the desktop is formed by coupling two or more of the work surfaces.   
     
     
         2 . The height adjustable desk of  claim 1 , wherein one or more of the telescoping legs includes a support base. 
     
     
         3 . The height adjustable desk of  claim 1 , wherein each respective telescoping leg is positioned relative to a respective desktop section. 
     
     
         4 . The height adjustable desk of  claim 1 , further including connection frame coupled between adjacent ones of the telescoping legs, the connection frame including frame rods and a frame rod connector coupling the frame rods. 
     
     
         5 . The height adjustable desk of  claim 4 , wherein the connection frame is a first connection frame and the frame rod connector is a first frame rod connector, the desk further including a second connection frame, the second connection frame including a second frame rod connector, wherein the second frame rod connector is longer relative to the first frame rod connector. 
     
     
         6 . The height adjustable desk of  claim 4 , wherein the frame rod connector includes a groove, the frame rods to slide relative to the groove. 
     
     
         7 . The height adjustable desk of  claim 4 , wherein the frame rod connector is coupled to a first surface of the desktop. 
     
     
         8 . The height adjustable desk of  claim 1 , wherein each telescoping leg includes a screw assembly coupled within the respective telescoping leg. 
     
     
         9 . The height adjustable desk of  claim 1 , wherein each telescoping leg includes a gearbox coupled thereto. 
     
     
         10 . The height adjustable desk of  claim 1 , wherein the worm of the drive system is coupled between the motor and the worm wheel. 
     
     
         11 . The height adjustable desk of  claim 1 , wherein the worm includes a threaded portion, and the worm gear includes teeth that engage with the threaded portion of the worm. 
     
     
         12 . The height adjustable desk of  claim 1 , wherein the actuators of the telescoping legs include lead screw assemblies. 
     
     
         13 . A height adjustable table comprising:
 telescoping legs structured to support a desktop, each telescoping leg including an actuator, each telescoping leg having a first end and a second end;   a drive system having a motor, a worm, and a worm wheel;   gearboxes, each gearbox coupled to a respective ones of the telescoping legs;   transmission shafts connected to the drive system and to the gearboxes, the transmission shafts including a sync rod adjustable between a first length and a second length, wherein the drive system is configured to drive the transmission shafts to drive the telescoping legs together to rise and fall; and   a desktop having work surfaces including a first work surface, a second work surface, and a third work surface, first ends of the telescoping legs to interface with the desktop.   
     
     
         14 . The height adjustable table of  claim 13 , wherein the desktop includes a first side and a second side. 
     
     
         15 . The height adjustable table of  claim 14 , wherein the desktop is configurable in a first configuration, the first configuration being a first L-shaped configuration, wherein the first side is longer than the second side in the first L-shaped configuration. 
     
     
         16 . The height adjustable table of  claim 15 , wherein the desktop is configurable in a second configuration, the first configuration being a second L-shaped configuration, wherein the first side is shorter than the second side in the second L-shaped configuration. 
     
     
         17 . The height adjustable table of  claim 14 , wherein the desktop is configurable in a third configuration, the third configuration being a first straight configuration, wherein the first side is longer than the second side in the third configuration. 
     
     
         18 . The height adjustable table of  claim 17 , wherein the desktop in the third configuration includes the first work surface, the second work surface, and the third work surface. 
     
     
         19 . The height adjustable table of  claim 17 , wherein the desktop is configurable in a fourth configuration, the fourth configuration being a second straight configuration, wherein the first side of the desktop in the second straight configuration is shorter than the first side of the desktop in the first straight configuration, and wherein the desktop includes two desktop sections in the fourth configuration. 
     
     
         20 . The height adjustable table of  claim 13 . further including connection frame coupled between adjacent ones of the telescoping legs, the connection frame including frame rods and a frame rod connector coupling the frame rods.